| US 7,485,352 B2 | ||
| Vacuum heat insulator and apparatus using the same | ||
| Akiko Yuasa, Kyoto (Japan); and Shinya Kojima, Aichi (Japan) | ||
| Assigned to Panasonic Corporation, Osaka (Japan) | ||
| Appl. No. 10/562,545 PCT Filed Jun. 24, 2004, PCT No. PCT/JP2004/009295 § 371(c)(1), (2), (4) Date Dec. 29, 2005, PCT Pub. No. WO2005/003618, PCT Pub. Date Jan. 13, 2005. |
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| Claims priority of application No. 2003-191970 (JP), filed on Jul. 04, 2003; application No. 2003-352024 (JP), filed on Oct. 10, 2003; and application No. 2004-019621 (JP), filed on Jan. 28, 2004. | ||
| Prior Publication US 2006/0159436 A1, Jul. 20, 2006 | ||
| Int. Cl. B32B 18/00 (2006.01); B32B 27/00 (2006.01); B32B 33/00 (2006.01) | ||
| U.S. Cl. 428—34.1 [428/35.7] | 8 Claims |
| 1. A vacuum heat insulator comprising:
a core;
a gas-barrier enveloping member covering the core and having a depressurized inside; and
a radiation heat transfer suppressor provided on at least one surface among external surfaces of the enveloping member,
wherein the radiation heat transfer suppressor has a first inorganic material film, and a second inorganic material film having
a reflectance different from that of the first inorganic material film, and the first inorganic material film and the second
inorganic material film are alternately laminated with each other.
|